Storage plant for inflammable liquids.



A. BERETTA.

STORAGE PLANT FOR INFLAMMABLE uoums.

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UNITED STATES PATENT OFFTOE.

ANNIBALE BERETTA, OF MILAN, ITALY, ASSIGNOR T'O MARTINI & HYUNEKE MASCHINENBAU-AKTIEN-GESELLSCHAFT, OF BERLIN, GERMANY, A COR- PORATION 0F GERMANY.

STORAGE PLANT FOR INFLAMMABLE LIQUIDS.

Application filed September 30, 1913.

To all whom it may concern:

Be it known that I, ANNIBALE BERETTA, a citizen of the Kingdom of Italy, and resident of Milan, Italy, have invented certain new and useful Improvements in Storage Plants for Inflammable Liquids, of which the following is a specification.

This invention relates to storage plants for inflammable liquids in which the inflam mable liquid is drawn off by means of a heavy incombustible liquid, and a primary object is to provide that no inflammable liquid shall issue in the event of the discharge pipe fracturing.

One illustrative embodiment of the invention is diagrammatically represented by way of example in the accompanying drawing, the figure shown being a sectional elevation of one form of apparatus according to the invention.

The tank 1, in which the inflammable liquid indicated by vertical dotted lines is stored, is connected to the tank 2 containing the incombustible liquid, 6. 9'. water, glycerin or the like indicated by horizontal dotted lines, by a pipe 3 which opens at one end at the bottom of the tank 2 and extends to the bottom of the tank 1 and contains a cock 6. A pipe 3 branches off from the pipe 3 and contains a cock 5 and a pump 4. The delivery port of said pump is connected with the lower portion of the pipe 3, and the suction port with the cock 5 and with the upper portion of said pipe 3, so that operation of the pump will produce a partial vacuum in the upper portion of the pipe 3. Another cock 6 is located in the pipe 3 between the two points at which it communicates with the pipe 3. A pipe 7 has one end connected to the top of the tank 1 and has at its other end a draw-off cock 9. Both the pipe 7 and the cock 9 are surrounded by a second pipe 8 which forms with the former an annular protective chamber which is connected by the pipe 10 with the upper part of the pipe 3.

The inflammable liquid is drawn oif by running incombustible liquid into the tank 1. To do this it suiiices to open the cock 5 Specification of Letters Patent.

Patented June 6, 1916.

Serial No. 792,576.

tank 1, so that the inflammable liquid can be drawn ofl at the cock 9. Now if the delivery pipe 7 and the surrounding pipe 8 are broken while inflammable liquid is being run off the air will at once enter into the pipe 10 and consequently stop the siphon action; no more inflammable liquid can then issue from the delivery pipe as no more incombustible liquid flows to the tank 1. It is to be noted that the pump 4 has to be operated only when first starting the plant, because when the cock 6 is closed the incombustible liquid remains in the pipe 3 above the cock, so that afterward, when it is desired to draw off the inflammable liquid, it suffices to open the cock 6 and the siphon action will at once start again.

I claim: The combination of a storage tank f0 storing inflammable liquids, a second tank for containing an incombustible liquid, said second tank being located at a higher level than the storage tank, a siphon pipe leading from the bottom of the second tank to the bottom of the storage tank, a delivery pipe connected to the top of the storage tank, a protective chamber surrounding the delivery pipe, a pipe connecting said chamber with the top of the siphon pipe, and means for producing a partial vacuum in the si phon pipe and in said chamber and thereby enabling liquid to be siphoned out of the second tank into the storage tank.

In testimony whereof, I have hereunto set my hand in the presence of the subscribing witnesses.

ANNIBALE BERETTA.

WVitnesses:

JAMns B. YOUNG, R. T. BARKER.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of ratente,

. Washington, D. G." 

